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Finding the Fourth Proportional to 245,859.80, 368,722.20 and 155,767.28

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Solution

The fourth proportional to 245,859.80, 368,722.20 and 155,767.28 is: 233,608.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,859.80 : 368,722.20 = 155,767.28 : x
  2. Step 2: Convert to fraction form
    245,859.80/368,722.20 = 155,767.28/x
  3. Step 3: Cross multiply
    245,859.80x = 368,722.20 × 155,767.28
  4. Step 4: Simplify right side
    245,859.80x = 57,434,854,169.62
  5. Step 5: Solve for x
    x = 57,434,854,169.62/245,859.80
  6. Step 6: Final answer
    x = 233,608.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.